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Algebra Binomial Theorem

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In the expansion of (1+x)²⁰, the coefficients of (r+1)^th and r^th terms are in the ratio 2:1. Then r is

A. 7

B. 6

C. 5

D. 4

E. None of the above

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Correct choice: A

Explanation:

None

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Eamcet Mathematics Algebra Binomial Theorem

Eamcet Mathematics
Algebra Binomial Theorem